From 4b2bdaebd5ba7fc6792c8e945724b67a210fba57 Mon Sep 17 00:00:00 2001
From: Kannan Kirishikesan <kannan@wso2.com>
Date: Thu, 2 Nov 2023 12:38:49 +0530
Subject: [PATCH] Fix for https://github.com/wso2/api-manager/issues/2226

---
 .../main/java/org/apache/synapse/api/API.java | 44 ++++++++++++-------
 .../java/org/apache/synapse/api/Resource.java |  8 +---
 2 files changed, 29 insertions(+), 23 deletions(-)

diff --git a/modules/core/src/main/java/org/apache/synapse/api/API.java b/modules/core/src/main/java/org/apache/synapse/api/API.java
index d7e6d23c64..78cfb298c6 100644
--- a/modules/core/src/main/java/org/apache/synapse/api/API.java
+++ b/modules/core/src/main/java/org/apache/synapse/api/API.java
@@ -457,22 +457,8 @@ public void process(MessageContext synCtx) {
                 if (resource != null) {
                     if (synCtx.getEnvironment().isDebuggerEnabled()) {
                         if (!synCtx.isResponse()) {
-                            SynapseWireLogHolder wireLogHolder = (SynapseWireLogHolder) ((Axis2MessageContext) synCtx).getAxis2MessageContext()
-                                    .getProperty(SynapseDebugInfoHolder.SYNAPSE_WIRE_LOG_HOLDER_PROPERTY);
-                            if (wireLogHolder == null) {
-                                wireLogHolder = new SynapseWireLogHolder();
-                            }
-                            if (synCtx.getProperty(RESTConstants.SYNAPSE_REST_API) != null && !synCtx.getProperty(RESTConstants.SYNAPSE_REST_API).toString().isEmpty()) {
-                                wireLogHolder.setApiName(synCtx.getProperty(RESTConstants.SYNAPSE_REST_API).toString());
-                                if (resource.getDispatcherHelper() != null) {
-                                    if (resource.getDispatcherHelper().getString() != null && !resource.getDispatcherHelper().getString().isEmpty()) {
-                                        wireLogHolder.setResourceUrlString(resource.getDispatcherHelper().getString());
-                                    }
-                                }
-                            }
-                            ((Axis2MessageContext) synCtx).getAxis2MessageContext().setProperty(SynapseDebugInfoHolder.SYNAPSE_WIRE_LOG_HOLDER_PROPERTY, wireLogHolder);
+                            initWirelogHolder(synCtx, resource);
                         }
-
                     }
                     resource.process(synCtx);
                     return;
@@ -483,8 +469,9 @@ public void process(MessageContext synCtx) {
             //This will get executed only in unhappy path. So ok to have the iterator.
             boolean resourceFound = false;
             boolean matchingMethodFound = false;
+            Resource resource = null;
             for (RESTDispatcher dispatcher : ApiUtils.getDispatchers()) {
-                Resource resource = dispatcher.findResource(synCtx, resources.values());
+                resource = dispatcher.findResource(synCtx, resources.values());
                 if (resource != null) {
                     resourceFound = true;
                     String method = (String) msgCtx.getProperty(Constants.Configuration.HTTP_METHOD);
@@ -495,7 +482,13 @@ public void process(MessageContext synCtx) {
             if (!resourceFound) {
                 handleResourceNotFound(synCtx);
             } else if (!matchingMethodFound) {
-                handleMethodNotAllowed(synCtx);
+                String method = (String) synCtx.getProperty(RESTConstants.REST_METHOD);
+                if (RESTConstants.METHOD_OPTIONS.equals(method)) {
+                    initWirelogHolder(synCtx, resource);
+                    resource.process(synCtx);
+                } else {
+                    handleMethodNotAllowed(synCtx);
+                }
             } else {
                 //Resource found, and matching method also found, which means request is BAD_REQUEST(400)
                 msgCtx.setProperty(SynapseConstants.HTTP_SC, HttpStatus.SC_BAD_REQUEST);
@@ -504,6 +497,23 @@ public void process(MessageContext synCtx) {
         }
     }
 
+    private static void initWirelogHolder(MessageContext synCtx, Resource resource) {
+        SynapseWireLogHolder wireLogHolder = (SynapseWireLogHolder) ((Axis2MessageContext) synCtx).getAxis2MessageContext()
+                .getProperty(SynapseDebugInfoHolder.SYNAPSE_WIRE_LOG_HOLDER_PROPERTY);
+        if (wireLogHolder == null) {
+            wireLogHolder = new SynapseWireLogHolder();
+        }
+        if (synCtx.getProperty(RESTConstants.SYNAPSE_REST_API) != null && !synCtx.getProperty(RESTConstants.SYNAPSE_REST_API).toString().isEmpty()) {
+            wireLogHolder.setApiName(synCtx.getProperty(RESTConstants.SYNAPSE_REST_API).toString());
+            if (resource.getDispatcherHelper() != null) {
+                if (resource.getDispatcherHelper().getString() != null && !resource.getDispatcherHelper().getString().isEmpty()) {
+                    wireLogHolder.setResourceUrlString(resource.getDispatcherHelper().getString());
+                }
+            }
+        }
+        ((Axis2MessageContext) synCtx).getAxis2MessageContext().setProperty(SynapseDebugInfoHolder.SYNAPSE_WIRE_LOG_HOLDER_PROPERTY, wireLogHolder);
+    }
+
     private void handleMethodNotAllowed(MessageContext synCtx) {
 
         auditDebug("Method not allowed for the request: " + synCtx.getMessageID());
diff --git a/modules/core/src/main/java/org/apache/synapse/api/Resource.java b/modules/core/src/main/java/org/apache/synapse/api/Resource.java
index 96c7806214..74c2f72279 100644
--- a/modules/core/src/main/java/org/apache/synapse/api/Resource.java
+++ b/modules/core/src/main/java/org/apache/synapse/api/Resource.java
@@ -168,9 +168,7 @@ public String[] getMethods() {
      * @return true if support false otherwise.
      */
     public boolean hasMatchingMethod(String method) {
-        if (RESTConstants.METHOD_OPTIONS.equals(method)) {
-            return true; // OPTIONS requests are always welcome
-        } else if (!methods.isEmpty()) {
+        if (!methods.isEmpty()) {
             if (!methods.contains(method)) {
                 if (log.isDebugEnabled()) {
                     log.debug("HTTP method does not match");
@@ -251,9 +249,7 @@ boolean canProcess(MessageContext synCtx) {
         String method = (String) msgCtx.getProperty(Constants.Configuration.HTTP_METHOD);
         synCtx.setProperty(RESTConstants.REST_METHOD, method);
 
-        if (RESTConstants.METHOD_OPTIONS.equals(method)) {
-            return true; // OPTIONS requests are always welcome
-        } else if (!methods.isEmpty()) {
+        if (!methods.isEmpty()) {
             if (!methods.contains(method)) {
                 if (log.isDebugEnabled()) {
                     log.debug("HTTP method does not match");